Cumberland EXPERT-50, Руководство пользователя

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39
Expert-50 rev.10
Expert-50
Variable Outputs
A variable ouptut is activated when the start temperature of the stage
that uses the output is reached. The output is activated at the absolute
minimum speed defined for the output (see User Setup) and the speed
increases up to full speed when room temperature reaches the start
temperature of the next stage.
If the next stage does not use the output, it is deactivated. Otherwise,
the speed is reduced to the minimum speed. If the last fan stage uses
variable outputs, they must be configured in on-off mode (see Output
Setup).
Stages 1 and 2 operate differently. Stage 1 can only operate variable
outputs. On-off outputs are not permitted though the variable outputs
can be operated in on-off mode. In addition, a bandwidth is defined for
each variable output when activated on stages 1 and 2. The figure below
illustrates this for variable output V1.
Start Temp.
Stage S
Start Temp.
Stage S+1
0
100%
Room
Temp.
Fan Speed
Min. Speed
V1
Differential
VARIABLE OUTPUT OPERATION